=Why is it important to ease into an exercise program?

Why do rna viruses appear to have higher rates of mutation? a) rna nucleotides are more unstable than dna nucleotides. b) replication of their genomes does not involve proofreading. c) rna viruses can incorporate a variety of nonstandard bases. d) rna viruses are more sensitive to mutagens.

Which food preservation method can people use at home? a. fermentation b. irradiation c. pasteurization d. thermal processing

Most people deal with their mental disorders head on. true or false?